Sang Jun Sim
Korea University, South Korea
Posters & Accepted Abstracts: Trends in Green chem
Biological conversion of CO2 using microalgae can be a sustainable solution to address global warming and energy crisis caused by fossil fuels. Microalgae have attracted considerable attention due to their ability for production of biofuels and useful chemicals by photosynthesis, and it is promising agent for biological CCU (carbon capture and utilization) technology. We developed two-track approach for effective microalgal CCU technology; first one is development in various micro-scale screening technology using microfluidic devices to select highly productive strain. Second one is development in mass culture system directly using the industrial flue gases. Flue gas containing 3��?5% CO2 from the combustion of LNG (liquefied natural gas) in CHP (combined heat and power) plants was supplied as carbon-feedstock to produce microalgae biomass. In the present system, natural solar radiation and hot water that has been heated without consuming any electric power were also used to improve the economic feasibility of CO2 capture from the flue gas using microalgae. Also, blower was continuously operated from the stack of power plant to microalgae cultivation site to supply the flue gas. In addition, we developed a lowcost thin-film photobioreactor (PBR) system with a vertical bubble column, which can provide a viable option for direct capture and utilization of concentrated CO2 emitted from power plants due to usability of scale-up and efficient capture of CO2. Demonstration of biological CCU process was improved by integrating these technologies.
Email: simsj@korea.ac.kr
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